After asking around about what other folks do for their pet's allergies, the general consensus has been to utilize Benedryl. Thank you for all the wonderful advice and commiserating. I especially loved my friend Kate's suggestion to call the vet and tell them that my 17 lb dachshund ate an adult Benedryl tab and ask them if he'll die. I got a good chuckle out of that one. I did end up calling the vet anyway
because I am psychotic like that, and they did tell me the adult 25mg Benedryl tabs are just fine. Rule of thumb is 1mg for every pound of body weight. So Riley enjoyed a little more than half of an adult Benedryl tab with a cube of cheddar cheese and finally found relief from scratching his poor little face off. Let me tell you though, about an hour into Benedryl he is a total space cadet. I found him sitting in the hallway staring at the ceiling. So, I did what good mommies do and I cuddled him on the couch so he, ahem, so we could take a nap.